Sochi Olympic torch blasts off into space. Part 4

It is all part of the elaborate preparations for Russia's first Olympics since the Soviet era. It is also the most expensive one so far, costing around $50bn (£31bn; 1,620bn roubles).

The run-up to the games has been marred by controversy over a new Russian law that restricts the spread of information about homosexuality, as well as allegations by rights groups that authorities have rounded up migrant workers who helped build the Games venues in Sochi.

In yet another minor setback, the flame has gone out several times since the torch relay began last month.